51 34 171 Replacing rear left or right door window

Special tools required:

WARNING: Danger of injury!
Carry out work on the power windows only when the power window motor is de-energized (unplug connector).

Necessary preliminary tasks

A = 200 mm

Fig 1: Identifying Lower Side Window Dimension

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Necessary preliminary tasks

Loosen hook screws (1) with special tool 51 3 240 on ring gear.

Tightening torque 51 35 1AZ .

Fig 2: Removing Outer Window Cavity Cover Strip Using Special Tool (51 3 240)

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NOTE: Slacken hook screw on ring gear (1) until it can be easily twisted out at the inner star (2).

Fig 3: Identifying Ring Gear And Inner Star Of Hook Screw

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Open door window glass (1) until hook screws (2) are accessible.

IMPORTANT: Danger of injury!
Disconnect plug connection (3) at power window motor (pinch hazard).

Release hook screws (2) (turn in clockwise direction).

Fig 4: Identifying Door Window Glass, Plug Connection And Hook Screws

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NOTE: Door window glass (3) remove for purposes of clarity.

Raise holder (1) at tab (2) and remove door window glass (3) in upward direction.

Fig 5: Removing Door Window Glass

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Installation note:

Make sure door window glass (1) is correctly seated on holder (2) and window guide (3).

Carry out function check on power window regulator and anti-trap mechanism.

If necessary, NORMALIZE power window regulator.

Fig 6: Adjusting Door Window Glass

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